The 30-year-old Mexican woman, whose name was not released, was in the driver's seat of a 2002 Jeep Cherokee parked in a rest area on Interstate 5 near Oceanside, said Scott Simon, a spokesman for the Border Patrol in San Diego. When agents questioned the woman, she gave inconsistent answers, Simon said.

The agents used a dog to search the vehicle and found the drugs hidden in the front of the Jeep, Simon said. The drugs, with an estimated street value of $214,800, were concealed in the intake manifold, Simon said.

The woman was turned over to the Drug Enforcement Administration for further investigation, Simon said. The vehicle was seized by the Border Patrol, he said.

In a separate incident, a 27-year-old U.S. citizen was arrested in Pine Valley fter Border Patrol agents found 91 pounds of cocaine hidden in her 2004 Chrysler Crossfire on Wednesday afternoon, Simon said.